Tag: Membrane potential

Every living cell relies on a precise balance of electrolytes to function properly. The human body contains approximately 3,500 millimoles of potassium, with 98% of it residing inside cells. This makes potassium the most abundant intracellular cation, and its presence is absolutely essential for maintaining normal cell function.

Approximately 98% of the body's potassium is found inside the cells, highlighting its critical role beyond just being a dietary mineral. The central function of potassium in the cell is to maintain the resting membrane potential, a key requirement for all cellular life.